Public Opinion in a Democracy, 1939;
   Saul Forbes Rae, the Pulse of Democracy, N.Y., 1940;
   A Guide to Public Polls, 1944;
   The quintamentional plan of question desing, ”The public opinion quarterly“, 1947, vol 11, p. 386–390;
   (Ed) The Gallup Poll Public Opinion (1931–1971), Westminster, 1972.